Reverse-gearing.



H. A. GARRISON. REVERSE GEARING. APPLIOATION FILED JAN.11. 1910.

ented Nov. 22, 1910.

Pat

I G Heine/13 UNITED STATES PATENT OFFICE,

HARRY A, ennmson, or FAYETTE, rows.

REVERSE-GEARING.

Specification of Letters Pat ent.-

. Patented Nov. 22, 1910,

Application filed January 1'1, 1910. Serial No. 537,488.

mobiles, motor boats or power driven machines, in which the shaft sections are main-' tained in perfect alineinent with each other,

and the power from oneshaft to the other applied in a more direct manner thereby -eliminating torsion on the bearing.

In the drawing, forming a portion of this specification and in which like numerals of reference Indicate similar parts in the sev-.

eral vieivs:--Figure 1 is a detail sectional elevation of in improved reverse gearing. Fig. 2 is a section taken on the line 2-2 of Fig, 1.

The reverse gearfeonsists of a cylindrical outer rim 1 which is nrov'ided witlFa-c om -tractingclutch or friction band-'2 which is operated by a lever 3 shown in Fig. 2 of the drawing wherebv the band may be moved into frictional engagement around the rim to hold the rim stationary, The rim carries a hub l which is loosely mounted on the drive shaft Mounted -faston the said shaft is a hub (i which supports a' sliding collar 7, this collar is provided with an annular groove for the reception of a ring 8 through which is pivotally connected the fork end of a shifting lever 9. The collar 7 supports an expansible clutch which preferably consists of suitable brake shoes 10 whicharc adapted to be moved into engage; ment with the walls of the rim 1 upon operation of the shifting lever 9.

A drum 11 is fixed on the driven shaft 12 and as shown, the annular wall 13 of the .said drum extends into the rim 1 at one side of the hub 4s The mall 13 of the said drum is toothed interiorly as shown at 14 to mesh with spaced gear'wheels 15 upon shafts 16 which eittend from the hub 4 upon the rim 1. The spaced gear wheels 15 are separated from each other by similar but smaller gear wheels 17 which are also operatively mounted upon/the shafts 16. The gear wheels 17. mesh with a master gear wheel 18 upon the of the driven shaft.

drive shaft 5. The'hub of the drum 11 is extended into the rim 1 to form a bearing for one end of the shaft 5. When the expanding clutch is.moved through the action of the sh1ft1ng lever 9 to engage the inner surface of the rim 1 the entire mechanism will re volve as a unit, the driven shaft being caused to revolve 1n the samedirection with the drive' shaft 5, but when this clutch is moved out of engagement with the rim 1 the gears 6o 15 and 17 become fixed parts andthe master gear turning" in a forward direction causes. as will be understood, a reverse motion of the inner drum and hence a reverse motion 1. In reverse gearing, a drive shaft, arim having a hub portion loosely mounted on the shaft, a master gear on the-shaft, a driven shaft, 11 fixed-drum supportedfby the driven shaft endhaving its. rim cxtendedto lie immediately beneath the said first named rim, the rim of the said drum having a pluralit of' annulartoothed surfaces shafts extend ing from said'hub, gear wheels'supported bythe saidlast namedshafts and meshing with the toothed surfacesjof the said drum and with said master geair, a. brake band for the first named rim,- and a sliding clutch member mounted on the drive shaft and 35 operable to engage th'e'suid'first named rihT to cause the same to rotate in a directior. with the drive shaft.

2. Reverse gearing comprising adrive shaft, :1 master ear wheel mounted fast on said shaft, a driven shaft, a drum fast on said driven shaft and provided .with anannular toothed surface, a rim surrounding the drain and supported by the said drive shaft, pairs of spaced gearssupported by the rim and meshing wlth the said toothed surface of the drum, gear wheels so ported by the rim and disposed between t e said spaced gear wheels and meshing with the said master gear wheel, a sliding clutch col 1 lar on the engine shaft, clutch shoes adapted to be moved thereby into frictional en age ment with the rim for holding the utter fast to the shaft, and a brake adapted for engagement with the rim to hold it against o rotation with the shaft when the clutch is moved to its released position.

3. In reverse gearing, a drive shaft, a

riin'havin a hub )ortion loosely mounted on the said shaft a l) rake band surrounding ihe rim, 5, sliding-clutch on th'e drive shaft 1 the said second named rim, and with said, for engaging the rim to cause the same to master gear. H) rotate with the shaft, a driven shaft havin In testimony whereof I afiix my signature a rim portion axtendmg inf/ the first namea in presence, of two witnesses. a rim, and having also a bearing ort-ion re- 0 HARRY A. GARR-ISON.

waiving-one EHd-Df said drive sha ,5 master Witnesses: jezr sacumgi to the drive shaft, and pinions I O. W. STEVENSON,

on thehubgi-ibhe first named rim geared t0 WM. FBAYER. 

